As long as an international policy on carbon emissions by airlines is not found, the "EU will stick to its own ETS system", Martin Lidegaard said on Friday. Denmark currently holds the EU's rotating presidency.

The carbon tax imposed on airlines by the European Union came into effect on January 1, but carriers will begin receiving bills only in 2013 after this year's carbon emissions have been assessed.

The EU has says the tax will help it achieve a goal of cutting carbon emissions by 20 per cent by 2020 and that it will not back down on the plan.

But more than two dozen countries, including China, Russia and the United States, have opposed the EU move, saying it violates international law.

The head of the Airbus parent company EADS said on Thursday that China has blocked purchases of Airbus planes by Chinese companies in reaction to the disputed tax.